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Vaillant ecoMax boiler - no hot water?

Getting CH and checked CH pipes after running hot tap to check if it was valve problem. Nothing! Could it be a pressure thing? Really annoyed, Please help : /

Georgina
June 2008
VaillantHeating, Home Heating SystemsVaillant Hot Water Running Tap
if its not firing when tap is opened, and fires on demand for ch, it is the dhw flow switch that is either scaled up or failed

T
June 2008

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